KGB agents operating in the Lithuanian SSR reportedly sought to compromise Šustauskas in the press by ordering Kaunas city police to regularly send him to a drunk tank.
In February 1992, he interrupted a talk show on LTV to deliver a public 15 minute letter in which he blamed Terleckas for the organization's deficiencies and accused him of being an agent of the KGB.
Because of the protest and later death threats by Liberty Union members, Austrian ambassador to Lithuania Florian Haug cancelled the planned annual event.
[10] Šustauskas was connected to the "Doctors" (Lithuanian: "Daktarai"), a famous organized crime group established in Kaunas.
The Seimas Ethics and Procedures Commission received declassified telephone recordings from the State Security Department of Lithuania, in which Šustauskas discusses various matters with Henrikas Daktaras, the leader of the crime group.
As the daily newspaper Respublika reported at the time, these recordings revealed that Šustauskas not only took care of the affairs of Daktaras' son Enrikas, who had been arrested, but also asked Daktaras to order certain members of the Kaunas municipal council how to vote, such as the head of "Kauno grūdai", Tautvydas Barštys.
[14] Šustauskas opposed Lithuania's accession to the European Union, claiming that it would be a form of economic slavery and compared the country's future in the organization to that of the Old Prussians.
[16] Šustauskas ran in the Marios constituency in Klaipėda in the 2004 Lithuanian parliamentary election, but only received 2.59% of the votes and finished last.
[21] Šustauskas organized a protest against corruption and NATO membership in Vilnius in 2016, during which he was physically attacked by his party's former member Jurij Subotin.